slip, slide and collide how do tectonic plates move?
TRANSCRIPT
3 Types of Plate Boundaries
(1) Divergent (constructive)
Convergent (destructive)
Transform (conservative)
Divergent Plates animation
• http://www.learner.org/interactives/dynamicearth/slip3.html
Divergent = Constructive
(2)Divergent plates separate and new crust is formed to fill in the gap left by the two divergent plates.
Where are Divergent Plate Boundaries?
(3)Mid Atlantic Ridge- runs along the Atlantic Ocean between the Americas and Africa/Europe.
(They are getting farther apart every year!)
Transform Plates animation
• http://www.learner.org/interactives/dynamicearth/slip3.html
Transform= Conservative(5) Transform Plates
move past one another, sliding. They do not destroy or create land.
Where are Transform Plate
Boundaries?(6) San Andres
Fault in California.
(7) When the plates move past one another they create earthquakes.
Convergent = Destructive
(9) Subduction- the process by which two plates collide and one plate is drawn underneath the other.
The Older Plate normally goes underneath the younger plate because it is heavier.
Convergent Plates and Subduction
(10) Convergent Plates are destroyed when one goes underneath the other.
Convergent Plate BoundaryConvergent can either be
(11) • continental-oceanic, • oceanic-oceanic• continental-continental
Where are Continental –Continental Plate Boundaries?
The Himalayas in India. The two plates collided and pushed one plate up to create the mountains.
Where are Oceanic- Oceanic Plate Boundaries?
Mariana Trench • off the coast of Japan and the
Philippines.
Islands• Underwater volcanoes form new
land masses
Where are Oceanic- Continental Plate Boundaries?
Volcanoes- found all along the “Ring of Fire” where active volcanoes are found because of subducting plates melting and becoming magma for volcanoes.
Plates in the FutureIn 50 Million years, scientist believe that the world
will look like this!
California
Russia
If Time-Plate Boundary Game
• http://www.learner.org/interactives/dynamicearth/slip4.html